CN107560182A - Hotline heater - Google Patents
Hotline heater Download PDFInfo
- Publication number
- CN107560182A CN107560182A CN201710930169.0A CN201710930169A CN107560182A CN 107560182 A CN107560182 A CN 107560182A CN 201710930169 A CN201710930169 A CN 201710930169A CN 107560182 A CN107560182 A CN 107560182A
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- Prior art keywords
- pipe
- oil
- inverted
- sealing
- exhaust outlet
- Prior art date
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- 238000007789 sealing Methods 0.000 claims abstract description 87
- 230000035699 permeability Effects 0.000 claims abstract description 24
- 238000007599 discharging Methods 0.000 claims abstract description 21
- 230000000903 blocking effect Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 29
- 239000012530 fluid Substances 0.000 claims description 26
- 239000007789 gas Substances 0.000 claims description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 241000973497 Siphonognathus argyrophanes Species 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000001590 oxidative effect Effects 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000004939 coking Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000003949 liquefied natural gas Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000004927 clay Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Resistance Heating (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Present invention is disclosed a kind of hotline heater, and it includes：Heater body, heater body include oil groove, and oil groove is provided with an at least exhaust outlet built with conduction oil on oil groove；Oil-sealing arrangement, the exhaust ports are correspondingly arranged one oil-sealing arrangement, and the oil-sealing arrangement includes：Permeability cell, for discharging the expanding gas in oil groove when heater body works；Sealing, the passage connected for blocking permeability cell with exhaust outlet；When heater body does not work, the air pressure in oil groove is small, both seals exhaust outlet, when heater body works, the seal of sealing is opened on the air pressure increase in oil groove, expanding gas top, so that permeability cell connects with evacuation port, expanding gas are exhausted by permeability cell.The hotline heater of the present invention avoids the disadvantage of open system, at the same have concurrently open system it is simple in construction, it is simple to operate, save and safeguard and the advantages of operating cost.
Description
Technical field
The present invention relates to fluid heating art, more particularly to a kind of hotline heater.
Background technology
Hotline heater using conduction oil as heat carrier, using circulating pump conduction oil is circulated in oil groove with uniformly by
Heat energy is conveyed to the equipment that need to be heated or medium by heat, conduction oil again.
Traditionally, the heat transfer system of hotline heater is mainly by two kinds, respectively open system and closed system.Open
Formula system is that blast pipe is set on oil groove, and when heat-conducting oil heating expands, gas can be discharged by the blast pipe, is so saved
Plant maintenance and operating cost, and operate also relatively simple.Nowadays it is domestic nearly to have 90% hotline heater using this
Heat transfer system.Closed system generally use inert gas makes conduction oil and air insulated.Closed system makes conduction oil closed operation,
Completely cut off air, can effectively prevent conduction oil oxidative degradation, prolonging service life of heat transfer oil.But because closed system needs a set of nitrogen
Gas generating system, complicate hotline heater and all bring certain influence to operation, maintenance, be rarely employed at present.
Although open system is simple in construction, oxidative phenomena can all occur in atmosphere in any oil product, and oil product
Oxidation rate and the contact area of oily oxygen are proportional, and therefore, conduction oil passes through blast pipe long-time and sky in open system
Gas bump contact, generation organic acid can be aoxidized, be polymerized to clay after further promoting oil product polymerisation, increase viscosity, passed
The thermal efficiency reduces, and causes overheat and tube coking, shortens the service life of conduction oil, influence system safe and stable operation.
The content of the invention
In order to solve, closed system existing for the heat transfer system of hotline heater in conventional art is complicated, open type system
Unite easy oxidation by air the problem of, the invention provides it is a kind of simple in construction and can air-isolation, protection conduction oil, extend
The hotline heater of service life of heat transfer oil.
The present invention provides a kind of hotline heater, including：
Heater body, the heater body include oil groove, and the oil groove is set on the oil groove built with conduction oil
There is an at least exhaust outlet；
Oil-sealing arrangement, the exhaust ports are correspondingly arranged the oil-sealing arrangement described in one, and the oil-sealing arrangement includes：
Permeability cell, for discharging the expanding gas in the oil groove when the heater body works；
Sealing, the passage connected for blocking the permeability cell with the exhaust outlet；
When the heater body does not work, the air pressure in the oil groove is small, exhaust outlet described in the both seals,
When the heater body works, the air pressure increase in the oil groove, expanding gas top is opened the seal of the sealing, made
Obtain the permeability cell to connect with the evacuation port, expanding gas are exhausted by the permeability cell.
Optionally, the sealing includes inverted U pipe and described seal, and the seal is to be stored in part U
Sealing fluid in type pipe, the Single port of the inverted U pipe connect with the exhaust outlet, the another port of the inverted U pipe with
The permeability cell connection；
The oil-sealing arrangement also includes caching pipe, and the caching pipe is used to cache inflated gas from the inverted U pipe
The sealing fluid of ejection, the caching pipe connect the inverted U pipe and the permeability cell, and the caching pipe is horizontally installed on described
The lower section of permeability cell and the top for being located at the inverted U pipe.
Optionally, the oil-sealing arrangement also includes connecting tube, and the connecting tube connects the inverted U pipe and the caching
Pipe；
The inverted U pipe includes inverted U tube body and horizontal seal pipe, the horizontal seal pipe connect the connecting tube and
The inverted U tube body, the inverted U tube body connect with the exhaust outlet of the oil groove.
Optionally, the oil-sealing arrangement also includes discharging tube, and the upper port of the discharging tube passes through three-way pipe and the company
Adapter, horizontal seal pipe connection, the lower port of the discharging tube have been located at tapping valve；
When the heater body does not work, the sealing fluid is stored in the horizontal seal pipe and the U
Type tube body is close to the side of the horizontal seal pipe.
Optionally, the oil-sealing arrangement also includes liquid level gauge, and the liquid level gauge is used to detect to seal in the oil-sealing arrangement
The liquid level of liquid, and send alarm when liquid level is less than the connecting tube and the discharging tube junction position.
Optionally, the upper end of the liquid level gauge is connected by the first ball valve with the caching pipe, the lower end of the liquid level gauge
Connected by the second ball valve with the discharging tube.
Optionally, the oil-sealing arrangement also includes being used to support the pipe support for caching pipe and for sealing the exhaust outlet
Blind flange, the pipe support is fixed on the blind flange, and the blind flange has a through hole, and the inverted U pipe passes through described
Through hole connects with the exhaust outlet.
Optionally, the sealing liquid is conduction oil.
Optionally, the oil groove has two or more exhaust outlets, and in addition to an exhaust outlet connects nitrogen, remaining is each
Exhaust outlet is equipped with described oil-sealing arrangement.
The technical scheme that embodiments of the invention provide can include the following benefits：
The present invention come air-isolation, prevents leading in oil groove by oil-sealing arrangement corresponding to being set on the exhaust outlet of oil groove
Deep fat contacts with the oxygen in air to be oxidized so that and substantial amounts of conduction oil will not go bad because of thermal oxidative reaction in oil groove,
The problem of tube coking is caused due to thermal oxidative reaction in open system is avoided, greatly extend conduction oil uses the longevity
Life, thereby, avoids the disadvantage of open system, while has open system simple in construction, simple to operate, saving maintenance and operation concurrently
The advantages of expense.
It should be appreciated that the general description and following detailed description of the above are only exemplary, this can not be limited
Invention.
Brief description of the drawings
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the present invention
Example, and in specification together for explaining principle of the invention.
Fig. 1 is that the hotline heater of the present invention only shows the structural representation of heater body.
Fig. 2 is that the hotline heater of the present invention shows the structural representation of oil-sealing arrangement and section heaters body.
Fig. 3 is the top view of heater body.
Fig. 4 is the structural representation of the medium coil pipe of the present invention.
Embodiment
In order to further illustrate the principle and structure of the present invention, the preferred embodiments of the present invention are carried out in conjunction with accompanying drawing detailed
Describe in detail bright.
As depicted in figs. 1 and 2, Fig. 1 is that the hotline heater of the present invention only shows the structural representation of heater body,
Fig. 2 is that the hotline heater of the present invention shows the structural representation of oil-sealing arrangement and section heaters body.Heat-conducting oil heating
Device includes heater body 10 and oil-sealing arrangement 20, and oil-sealing arrangement 20 is arranged on the exhaust outlet 14 of heater body 10.
With reference to shown in Fig. 3, Fig. 3 is the top view of heater body.Heater body 20 includes oil groove 11, in oil groove
Circulating pump 12, the electrical heating coil pipe 13 that is heated to the conduction oil in oil groove 11 and the medium coil pipe for heating medium
15.Be mounted with conduction oil in oil groove 11, circulating pump 12 drives conduction oil in the internal circulation flow of oil groove 11 so that conduction oil uniformly by
Heat.The part electric wire tube of electrical heating coil pipe 13 is exposed to be connected outside oil tank 11 with electric heater unit 18, and part electric wire tube stretches
Enter in oil tank 11 to heat conduction oil.When electric heater unit 18 works, the electric wire tube of electrical heating coil pipe 13 is to conduction oil
Heated.
As shown in figure 4, its structural representation for the medium coil pipe of the present invention.Medium coil pipe 15 coils curl, and
It is fully immersed in conduction oil so that the outer tube wall of each pipeline of medium coil pipe 15 can contact with conduction oil, be led with fully absorbing
The heat of deep fat.The medium that need to be heated is passed through the inside of medium coil pipe 15 so that the medium is inhaled from the tube wall of medium coil pipe 15
Heat is received, so as to reach the purpose of conducting self-heating.For example, the medium that need to be heated is liquefied natural gas, liquefied natural gas warp
When crossing medium coil pipe 15, heat is absorbed, and then is converted into gas, realizes the purpose of gasification.Therefore, the hotline heater also may be used
For the gasification to liquefied natural gas.
In order to control the temperature of heat-conducting oil heating and speed, heater body 20 also includes PLC control cabinet 16 and electric-controlled
Cabinet 17 processed, PLC is provided with PLC control cabinet 16, the electrical equipment that the PLC passes through in electrical control cabinet 17 is real
Now to the control of electric heater unit 18, thus, the accurate firing rate and heating-up temperature for controlling conduction oil.
The exhaust outlet 14 that the top of oil groove 11 is set is used for when hotline heater works, and the gas of expansion is discharged,
Reduce the pressure in oil tank 11.More preferably, in order to reduce the conduction oil and contacting external air in oil tank 11, except an exhaust outlet connects
(after the completion of nitrogen displacement, the exhaust outlet for being passed through nitrogen can quilt first or outside maintenance rear substitution oil groove inner air for nitrogen
Sealing), in other each exhaust ports, one oil-sealing arrangement 20 is set；Or one oil sealing can also be set in each exhaust outlet
Device 20, in this case, the displacement of nitrogen can be carried out by the hole on spill case, certainly also can be by other oil tanks 11
Hole carry out.
As shown in Fig. 2 oil-sealing arrangement 20 includes permeability cell 21 and sealing 22.When heater body 10 works, oil groove
Gas expansion in 11, volume increase, now, permeability cell 21 are used to discharge the expanding gas in oil groove 11, reduce oil tank 11
Interior gas pressure.The seal of sealing 22 is used to block the passage that permeability cell 21 connects with exhaust outlet 14.Work as heater
When body 10 does not work, the air pressure in oil groove 11 is smaller, the seal sealing exhaust outlet 14 of sealing 22, the heat conduction in oil tank 11
Oil and air insulated；When heater body 10 works, when the air pressure in oil groove expands because of heating, when air pressure increases to necessarily
During degree, the seal of sealing 22 is opened on expanding gas top so that permeability cell 21 connects with evacuation port 14, and expanding gas pass through saturating
Tracheae 21 is exhausted, and reduces the air pressure in oil tank 11.
Specifically, sealing 22 includes inverted U pipe 221 and seal, the seal is to be stored in part inverted U pipe 221
Interior sealing fluid (not shown).In order to avoid sealing fluid is inhaled into oil groove 11 and contaminated oil when the air pressure of oil groove 11 is too low
Groove 11, it is preferable that the sealing fluid is same media with the fluid in oil groove 11, i.e., the sealing fluid is also conduction oil.In addition,
When the air pressure of oil groove 11 is too low, nitrogen can be filled with ftercompction is carried out to oil groove 11.
Inverted U pipe 221 includes inverted U tube body 221a and horizontal seal pipe 221b, and U-tube body 221a is in inverted U, should
Inverted U tube body 221a left-hand component is the first VERTICAL TUBE, and right-hand component is the second VERTICAL TUBE, and center section is connection first
The bend pipe of VERTICAL TUBE and the second VERTICAL TUBE.First VERTICAL TUBE of inverted U tube body 221a left-hand component and horizontal seal pipe
221b connections, the second VERTICAL TUBE of inverted U tube body 221a right-hand component connect with the exhaust outlet 14 of oil groove 11.
Horizontal seal pipe 221b stores sealing fluid, is stored up in the first VERTICAL TUBE of inverted U tube body 221a left-hand components
There is a small amount of sealing fluid, because sealing fluid itself has weight, therefore in the presence of weight, and without outer masterpiece
In the case of, sealing fluid be impossible break through inverted U tube body 221a center sections bend pipe and and then right-hand component
Second VERTICAL TUBE, therefore, sealing and exhaust outlet 14 are can be very good positioned at the sealing fluid of inverted U tube body 221a left-hand components
The second VERTICAL TUBE being connected, and then prevent conduction oil and contacting external air in oil tank 11.
Further, oil-sealing arrangement 20 also includes caching pipe 23 and the connecting tube for connecting inverted U pipe 221 and caching pipe 23
24.Caching pipe 23 is used to cache the sealing fluid that inflated gas ejects from inverted U pipe 221.Caching pipe 23 passes through connecting tube
24 connection inverted U pipes 221 and permeability cell 21.Caching pipe 23 is horizontally installed on the lower section of permeability cell 21 and is located at the He of inverted U pipe 221
The top of connecting tube 24.
Further, oil-sealing arrangement 20 also includes being used for the pipe support 29 for supporting caching pipe 23 and the method for sealing exhaust outlet 14
Blue lid 28.Pipe support 29 is fixed on blind flange 28 caches pipe 23 to support.Blind flange 28 has a through hole, and inverted U pipe 221 passes through
The through hole connects with exhaust outlet 14.
Further, oil-sealing arrangement 20 also includes discharging tube 25, and the upper port of discharging tube 25 passes through three-way pipe 241 and connecting tube
24th, horizontal seal pipe 221b is connected, and the lower port of discharging tube 25 has been located at tapping valve 251.Tapping valve 251 is used to periodically discharge oil
Sealing fluid in seal apparatus 20, to change sealing fluid, prevent that sealing fluid usage time is long and aoxidizes.The He of discharging tube 25
Connecting tube 24 can connect into a straight tube.Discharging tube 25 is arranged on horizontal seal pipe 221b lower section.
Further, oil-sealing arrangement 20 also includes liquid level gauge 26, and the upper end of liquid level gauge 26 is managed by the first ball valve 261 with caching
23 connections, the lower end of liquid level gauge 26 is connected by the second ball valve 262 with discharging tube 25.Liquid level gauge 26 is used to detect oil-sealing arrangement 20
The liquid level of middle sealing liquid, and alarm is sent when liquid level is less than 24 junction position of connecting tube 24 and discharging tube, to carry
Awake staff adds sealing fluid in time.
Further, oil-sealing arrangement 20 also includes fuel feeding valve 281 and oil fuel tube 282, and oil fuel tube 282 is connected with caching pipe 23,
When the sealing liquid in oil-sealing arrangement 20 is very few, fuel feeding valve 281 is opened, you can oil-sealing arrangement 20 is added by oil fuel tube 282
Encryption envelope fluid.
The principle of oil-sealing arrangement of the present invention is as follows：
When heater body 10 does not work, fluid major storage is sealed in discharging tube 25 and horizontal connection tube 221b, with
And be stored on a small quantity in the first VERTICAL TUBE of left-hand component of inverted U pipe 221, when heater body 10 does not work, oil groove 11
Interior air pressure is smaller, sealing Fluid Sealing exhaust outlet 14 so that oil groove 11 is in air-tight state；
When heater body 10 works, with the temperature more and more higher of conduction oil, the inner volume of oil groove 11 also gradually expands,
Air pressure is raised, and gas is risen into inverted U pipe 221, and top is opened in conduction oil to the caching pipe 23 of inverted U pipe left-hand component,
Now, gas is discharged by the ventilation mouth of permeability cell, and after exhaust, the conduction oil cached in pipe 23 is back to down rapidly U
Sealed in type pipe 221, this process can be reflected by the height of liquid level that liquid level gauge 26 is shown.
When hotline heater is stopped using or reduces load in use, Wen Duxiajiang in oil groove 11, volume contraction, pressure
Power reduces, and now, the conduction oil in inverted U pipe 221 may be back in oil groove 11 under atmospheric pressure, now passed through
Observe liquid level gauge 26 on level readings or when the alarm on liquid level gauge 26 is sounded, fuel feeding valve 281 can be opened in time to inverted U
The supplement sealing fluid of pipe 221, and be filled with nitrogen and ftercompction is carried out to oil groove 11.
A small amount of conduction oil in inverted U pipe 221 can directly contact with air, but not directly contact thermal source, therefore more
In the case of number, hot oxygen reaction can't occur, even if will not be also all introduced into there occurs thermal oxidative reaction in oil groove 11 dirty
Dye, while the conduction oil in inverted U pipe can also be discharged by discharging tube and is replaced.
Thus, the present invention prevents by oil-sealing arrangement corresponding to being set on each exhaust outlet of oil groove come air-isolation
Conduction oil in oil groove contacts with the oxygen in air to be oxidized so that substantial amounts of conduction oil will not be anti-because of thermal oxide in oil groove
Should and go bad, avoid the problem of tube coking is caused due to thermal oxidative reaction in open system, greatly extend heat conduction
Oil service life, thereby, the disadvantage of open system can be avoided, at the same have concurrently open system it is simple in construction, it is simple to operate, section
The advantages of saving maintenance and operating cost.
The preferable possible embodiments of the present invention are these are only, are not limited the scope of the invention, it is all with the present invention
Equivalent structure change made by specification and accompanying drawing content, is all contained in protection scope of the present invention.
Claims (10)
- A kind of 1. hotline heater, it is characterised in that including：Heater body, the heater body include oil groove, the oil groove built with conduction oil, be provided with the oil groove to A few exhaust outlet；Oil-sealing arrangement, the oil-sealing arrangement described in one is correspondingly arranged in the exhaust ports, the oil-sealing arrangement includes：Permeability cell, for discharging the expanding gas in the oil groove when the heater body works；Sealing, the passage connected for blocking the permeability cell with the exhaust outlet；When the heater body does not work, the air pressure in the oil groove is small, exhaust outlet described in the both seals, in institute When stating heater body work, the seal of the sealing is opened on the air pressure increase in the oil groove, expanding gas top so that institute State permeability cell to connect with the evacuation port, expanding gas are exhausted by the permeability cell.
- 2. according to the hotline heater described in right on request 1, it is characterised in thatThe sealing includes inverted U pipe and described seal, and the seal is the sealing being stored in the inverted U pipe of part Fluid, the Single port of the inverted U pipe connect with the exhaust outlet, and another port and the permeability cell of the inverted U pipe connect It is logical；The oil-sealing arrangement also ejects including caching pipe, the caching pipe for caching inflated gas from the inverted U pipe Sealing fluid, the caching pipe connects the inverted U pipe and the permeability cell, and the caching pipe is horizontally installed on described ventilative The lower section of pipe and the top for being located at the inverted U pipe.
- 3. according to the hotline heater described in right on request 2, it is characterised in that the oil-sealing arrangement also includes connecting tube, The connecting tube connects the inverted U pipe and the caching pipe；The inverted U pipe includes inverted U tube body and horizontal seal pipe, and the horizontal seal pipe connects the connecting tube and described Inverted U tube body, the inverted U tube body connect with the exhaust outlet of the oil groove.
- 4. according to the hotline heater described in right on request 3, it is characterised in that the oil-sealing arrangement also includes discharging tube, The upper port of the discharging tube is connected by three-way pipe with the connecting tube, the horizontal seal pipe, the lower end of the discharging tube Mouth has been located at tapping valve；When the heater body does not work, the sealing fluid is stored in the horizontal seal pipe and the inverted U pipe Body is close to the side of the horizontal seal pipe.
- 5. according to the hotline heater described in right on request 4, it is characterised in that the oil-sealing arrangement also includes liquid level gauge, The liquid level gauge is used to detect the liquid level that liquid is sealed in the oil-sealing arrangement, and is less than the connecting tube and the row in liquid level Alarm is sent during the position of liquid pipe junction.
- 6. according to the hotline heater described in right on request 5, it is characterised in that the upper end of the liquid level gauge passes through the first ball Valve is connected with the caching pipe, and the lower end of the liquid level gauge is connected by the second ball valve with the discharging tube.
- 7. according to the hotline heater described in right on request 2, it is characterised in that the oil-sealing arrangement also includes being used to support The pipe support of the caching pipe and the blind flange for sealing the exhaust outlet, the pipe support is fixed on the blind flange, described Blind flange has a through hole, and the inverted U pipe is connected by the through hole with the exhaust outlet.
- 8. according to the hotline heater described in right on request 2, it is characterised in that the sealing liquid is conduction oil.
- 9. according to the hotline heater described in right on request 1, it is characterised in that the oil groove has two or more Exhaust outlet, in addition to an exhaust outlet connects nitrogen, remaining each exhaust outlet is equipped with described oil-sealing arrangement.
- 10. according to the hotline heater described in right on request 1, it is characterised in that the heater body also includes electricity and added Hot coil and medium coil pipe, the electrical heating coil pipe heat to the conduction oil in the oil groove, the medium coil pipe submergence In the conduction oil, the medium that need to be heated circulates from the medium tube, and absorbs heat by the medium coil pipe to add Heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710930169.0A CN107560182B (en) | 2017-10-09 | 2017-10-09 | Heat conducting oil heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710930169.0A CN107560182B (en) | 2017-10-09 | 2017-10-09 | Heat conducting oil heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107560182A true CN107560182A (en) | 2018-01-09 |
| CN107560182B CN107560182B (en) | 2023-01-31 |
Family
ID=60983937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710930169.0A Active CN107560182B (en) | 2017-10-09 | 2017-10-09 | Heat conducting oil heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107560182B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224776A (en) * | 2018-03-06 | 2018-06-29 | 哈尔滨千安庆防爆电热电气有限公司 | A kind of electric heater for heat conduction oil |
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|---|---|---|---|---|
| CN108224776A (en) * | 2018-03-06 | 2018-06-29 | 哈尔滨千安庆防爆电热电气有限公司 | A kind of electric heater for heat conduction oil |
| CN108224776B (en) * | 2018-03-06 | 2024-03-19 | 哈尔滨千安庆防爆电热电气有限公司 | Conduction oil electric heater |
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| Publication number | Publication date |
|---|---|
| CN107560182B (en) | 2023-01-31 |
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